Proper Japanese Title: 月刊少年ジェッツ
Short-lived magazine that ran from 1981-1983 when it was replaced by Monthly ComiComi. Because the replacement magazine ultimately changed into a seinen magazine, this very brief magazine was Hakusensha's main foray into shonen manga while multiple long-running magazines have targeted seinen, shojo and josei demographics.
The magazine's lasting legacy however was the creation of the Jets Comics brand, which was still kept in use after the magazine ended despite no other magazine using the word "Jets" in the title. As a result, many major series that never even existed when this magazine stopped publication have used the Jets Comics branding, including the publisher's best known series, Berserk (which only dropped the branding after 2013, thirty years after Shonen Jets ended).